User manual

MCP3422 EVALUATION BOARD FOR

PICkit™ SERIAL USER’S GUIDE

Chapter 1. Quick Start Instructions

1.1 INTRODUCTION

The following sections provide an overview of the MCP3422 Evaluation Board and

demonstrate how to use it with the PICkit™ Serial Analyzer (P/N: DV164122).

The following topics are covered:

• Description of the MCP3422 Evaluation Board

• How to use the MCP3422 Evaluation Board with the PICkit Serial Analyzer

1.2 DESCRIPTION OF THE MCP3422 EVALUATION BOARD

The MCP3422 Evaluation Board (P/N MCP3422EV) contains a MCP3422 18-Bit

Delta-Sigma Analog-to-Digital Converter (ADC). The MCP3422 is a 2-channel ADC

device with various options. The MCP3422 Evaluation Board has analog input

connection pads and V

, SDA, and SCL test pads. The user can connect inputs and

test the conversion results using the PICkit Serial Analyzer and its PC graphic user

interface (GUI). The MCP3422 Evaluation Board has the following interface:

• PICkit Serial Analyzer for writing configuration register bits and reading the

conversion data.

The user can monitor the I

communications by connecting an oscilloscope to the

SDA and SCL test pads. Refer to Appendix A. “Schematic and Layouts”.

1.2.1 I

C Address Bits for the MCP3422

The I

C device code and address bits of the MCP3422 device are programmed at

factory:

• Device Code: ‘1101’

• A2, A1, A0 Address Bits: the MCP3422 device in the MCP3422 Evaluation Board

uses default setting: (A2, A1, A0) = (0, 0, 0)

• Address Byte = 1101000R/W

Note: The MCP3422 Evaluation Board can be used without the PICkit Serial

Analyzer as long as the V

, SCL, and SDA are provided to the board. The

MCP3422 Evaluation Board does not include MCU.